阅读说明：本技术 高炉冶炼量化决策支持系统、设备及存储介质 (blast furnace smelting quantitative decision support system, equipment and storage medium ) 是由 饶家庭 郑魁 黄先佑 于 2019-09-19 设计创作，主要内容包括：本发明实施例提供了一种高炉冶炼量化决策支持系统及设备。所述系统包括：焦化工序模块,对煤进行结构及成本优化,参数变动对焦炭质量及成本的影响幅度量化；烧结工序模块,对矿进行有约束条件的成本优化,参数变动对烧结矿成本的影响幅度量化；高炉工序模块,对矿进行有约束条件的成本优化,参数变动对焦比的影响幅度量化；上述三个模块对物料、元素平衡、热量平衡量化进行幅度量化；精矿造块分析模块,分析精矿造块配入烧结或球团时,对烧结配矿结构及高炉炉料成本的影响；进口矿分析模块,分析配入进口矿后,对成本的影响；数据库管理模块,记录子数据表与汇总表的关系。本发明可以对高炉冶炼过程中各个工序提供改进及决策的依据。(The embodiment of the invention provides a blast furnace smelting quantitative decision support system and equipment. The system comprises: the coking process module is used for optimizing the structure and cost of coal, and quantifying the influence range of parameter change on the coke quality and cost; the sintering procedure module is used for carrying out cost optimization with constraint conditions on the ore and quantifying the influence amplitude of parameter change on the cost of the sintered ore; the blast furnace process module is used for carrying out cost optimization with constraint conditions on ores and quantifying the influence amplitude of parameter variation on the coke ratio; the three modules carry out amplitude quantization on material, element balance and heat balance quantization; the concentrate agglomeration analysis module is used for analyzing the influence of the concentrate agglomeration on a sintering ore blending structure and the blast furnace burden cost when the concentrate agglomeration is blended into sintering or pelletizing; the imported ore analysis module is used for analyzing the influence on the cost after the imported ore is added; and the database management module records the relationship between the sub data tables and the summary table. The invention can provide the basis for improvement and decision-making for each process in the blast furnace smelting process.)

1. A blast furnace smelting quantitative decision support system is characterized by comprising:

The database management module is used for recording the relation between the sub data table and the summary table;

the coking process module is used for optimizing the structure and cost of the coal, and quantifying the balance of materials and elements, the balance of heat and the influence of parameter change on the quality and cost of the coke;

The sintering procedure module is used for carrying out cost optimization with constraint conditions on the ore, and quantifying the balance of materials and elements, the balance of heat and the influence amplitude of parameter variation on the cost of the sintered ore;

The blast furnace process module is used for carrying out cost optimization with constraint conditions on ores, and quantifying material and element balance, heat balance and the influence amplitude of parameter variation on coke ratio;

The ore concentrate agglomeration analysis module is used for analyzing the influence of ore concentrate agglomeration on a sintering ore blending structure and blast furnace burden cost when the ore concentrate agglomeration is blended into sintering or pelletizing;

and the imported ore analysis module is used for analyzing the influence on a sintering ore blending structure, the furnace feeding grade of the blast furnace and the pig iron cost after the imported ore is blended.

2. The blast furnace smelting quantitative decision support system according to claim 1, wherein the database management module is further configured to evaluate a raw fuel cost performance, and accordingly, the raw fuel cost performance evaluation method comprises:

A three-stage evaluation method, a sintering single-burning-pig iron cost comprehensive evaluation method and a blast furnace pig iron cost comprehensive evaluation method.

3. the blast furnace smelting quantitative decision support system according to claim 1, wherein the system for recording the relationship between the sub-data sheet and the summary sheet comprises: recording

The relationship between the coking sub-data sheet and the coking procedure matching coal summary sheet;

the relationship between the sintering sub-data sheet and the sintering procedure mixed ore summary sheet;

The relationship between the blast furnace process sub-data sheet and the blast furnace process raw fuel summary sheet.

4. The blast furnace smelting quantitative decision support system according to claim 1, wherein the system for performing structural and cost optimization on coal comprises:

taking the first 3 kinds of gas coal, the first 3 kinds of fat coal, the first 5 kinds of coking coal, the first 2 kinds of lean coal and the first 5 kinds of 1/3 coking coal in a database to form 18 kinds of coal, and carrying out material structure with constraint conditions and cost optimization on the 18 kinds of coal;

and according to the specified coal blending structure, the material and element balance of the coking process, the heat balance quantification and the influence range quantification of the parameter change on the coke quality and the cost are carried out.

5. The blast furnace smelting quantitative decision support system according to claim 1, wherein the constrained cost optimization for a mine comprises:

Taking the first 5 kinds of iron ore concentrate, the first 3 kinds of imported ore, the first 3 kinds of national high powder, the first 3 kinds of medium powder, the first 1 kinds of lime, the first 1 kinds of raw stone sand and the first 1 kinds of coal powder in a database to form 18 kinds of ore, and carrying out cost optimization with constraint conditions on the 18 kinds of ore;

And materials with the specified proportion are subjected to material and element balance, heat balance quantification and parameter change influence amplitude quantification on the sinter cost.

6. The blast furnace process quantification decision support system according to claim 1, wherein the blast furnace process module, for constrained cost optimization of a mine, comprises:

Taking the first 5 types of sintered ores, the first 4 types of pellet ores, the first 3 types of lump ores, the first 2 types of fluxes, the first 2 types of cokes and the first 2 types of coal powder in a database to form 18 types of ores, and carrying out cost optimization with constraint conditions on the 18 types of ores;

And carrying out amplitude quantification on the influences of material and element balance, heat balance quantification and parameter change on the focal ratio.

7. The blast furnace smelting quantitative decision support system according to claim 1, wherein the concentrate agglomeration comprises:

Vanadium-titanium magnetite concentrate.

8. The blast furnace smelting quantitative decision support system according to claim 1, wherein the system for analyzing the influence on the sintered ore blending structure, the blast furnace charging grade and the pig iron cost after the ore blending into the imported ore comprises:

And analyzing the influence of the proportion and unit price of the imported ore added to the sintering process of the vanadium-titanium magnetite concentrate on the structure of the sintered ore added, the furnace feeding grade of the blast furnace and the pig iron cost, and judging the proper unit price of the imported ore according to the change of the unit prices of the coke and the imported ore.

9. An electronic device, comprising:

at least one processor, at least one memory, a communication interface, and a bus; wherein the content of the first and second substances,

The processor, the memory and the communication interface complete mutual communication through the bus;

the memory stores program instructions executable by the processor, which are invoked by the processor to implement the system of any one of claims 1 to 8.

10. A non-transitory computer-readable storage medium storing computer instructions that cause a computer to implement the system of any one of claims 1 to 8.

Technical Field

The embodiment of the invention relates to the technical field of blast furnace metallurgy, in particular to a blast furnace smelting quantitative decision support system, equipment and a storage medium.

Background

The iron-making process bears more than 70% of energy consumption of the steel process, improves effective utilization of substances and energy of the iron-making process, and is one of important measures for improving enterprise competitiveness. The iron-making procedure quantitative decision support system is a comprehensive analysis system for the ferrite flow, the carbon energy flow and the cost flow of the whole iron-making procedure, and aims to quantitatively analyze the ferrite flow direction and distribution rule, the carbon energy flow direction and distribution rule and the influence of each ferrite flow and carbon energy flow on the iron-making cost in the sub-procedures of coking, sintering, blast furnace and the like in an iron-making system. In iron and steel enterprises, the ferrite flow is the main form of material flow, and the carbon flow is the main form of energy flow. The comprehensive research on material flow and energy flow is beneficial to optimizing the manufacturing process of the whole iron and steel enterprise, so that the aims of high quality, low cost, high production efficiency, smooth operation, high energy utilization efficiency, low energy consumption, less emission, environmental friendliness and the like are fulfilled, and the attention of each iron and steel enterprise is paid. Because the raw fuel conditions used by various iron and steel enterprises are different greatly, the comparability of various process indexes of different iron and steel enterprises is not strong, and because of the particularity of raw materials, the iron loss and the energy consumption are high. Therefore, how to establish a quantitative support decision system for each sub-process of iron making according to the boundary conditions of blast furnace smelting and provide the direction of improvement and decision for each blast furnace smelting process becomes a technical problem which is widely concerned in the industry.

Disclosure of Invention

In view of the above problems in the prior art, embodiments of the present invention provide a blast furnace smelting quantitative decision support system, a device, and a storage medium.

In a first aspect, an embodiment of the present invention provides a blast furnace smelting quantitative decision support system, including: the database management module is used for recording the relation between the sub data table and the summary table; the coking process module is used for optimizing the structure and cost of the coal, and quantifying the balance of materials and elements, the balance of heat and the influence of parameter change on the quality and cost of the coke; the sintering procedure module is used for carrying out cost optimization with constraint conditions on the ore, and quantifying the balance of materials and elements, the balance of heat and the influence amplitude of parameter variation on the cost of the sintered ore; the blast furnace process module is used for carrying out cost optimization with constraint conditions on ores, and quantifying material and element balance, heat balance and the influence amplitude of parameter variation on coke ratio; the ore concentrate agglomeration analysis module is used for analyzing the influence of ore concentrate agglomeration on a sintering ore blending structure and blast furnace burden cost when the ore concentrate agglomeration is blended into sintering or pelletizing; and the imported ore analysis module is used for analyzing the influence on a sintering ore blending structure, the furnace feeding grade of the blast furnace and the pig iron cost after the imported ore is blended.

Further, on the basis of the contents of the above system embodiments, the blast furnace smelting quantitative decision support system provided in the embodiments of the present invention further includes a database management module for evaluating a raw fuel cost performance, and accordingly, the evaluation method of the raw fuel cost performance includes: a three-stage evaluation method, a sintering single-burning-pig iron cost comprehensive evaluation method and a blast furnace pig iron cost comprehensive evaluation method.

Further, on the basis of the contents of the above system embodiment, the blast furnace smelting quantitative decision support system provided in the embodiment of the present invention is configured to record the relationship between the sub data table and the summary table, and includes: recording the relationship between a coking sub data table and a coking procedure matching coal summary table; recording the relation between the sintering sub-data sheet and the sintering procedure mixed ore summary sheet; and recording the relationship between the blast furnace process sub-data sheet and the blast furnace process raw fuel summary sheet.

further, on the basis of the contents of the above system embodiments, the blast furnace smelting quantitative decision support system provided in the embodiments of the present invention is used for performing structure and cost optimization on coal, and includes: taking the first 3 kinds of gas coal, the first 3 kinds of fat coal, the first 5 kinds of coking coal, the first 2 kinds of lean coal and the first 5 kinds of 1/3 coking coal in a database to form 18 kinds of coal, and carrying out material structure with constraint conditions and cost optimization on the 18 kinds of coal; and according to the specified coal blending structure, the material and element balance of the coking process, the heat balance quantification and the influence range quantification of the parameter change on the coke quality and the cost are carried out.

Further, on the basis of the above-mentioned system embodiment, the blast furnace smelting quantitative decision support system provided in the embodiment of the present invention is used for performing constrained-condition cost optimization on a mine, and includes: taking the first 5 kinds of iron ore concentrate, the first 3 kinds of imported ore, the first 3 kinds of national high powder, the first 3 kinds of medium powder, the first 1 kinds of lime, the first 1 kinds of raw stone and the first 1 kinds of coal powder in a database to form 18 kinds of ore, and carrying out cost optimization with constraint conditions on the 18 kinds of ore; and materials with the specified proportion are subjected to material and element balance, heat balance quantification and parameter change influence amplitude quantification on the sinter cost.

Further, on the basis of the contents of the above system embodiments, the blast furnace smelting quantitative decision support system provided in the embodiments of the present invention is used for cost optimization with constraint conditions for ores and material and heat balance quantification, and includes: taking the first 5 types of sintered ores, the first 4 types of pellet ores, the first 3 types of lump ores, the first 2 types of fluxes, the first 2 types of cokes and the first 2 types of coal powder in a database to form 18 types of ores, and carrying out cost optimization with constraint conditions on the 18 types of ores; and carrying out amplitude quantification on the influences of material and element balance, heat balance quantification and parameter change on the focal ratio.

Further, on the basis of the contents of the above system embodiments, the blast furnace smelting quantitative decision support system provided in the embodiments of the present invention includes: vanadium-titanium magnetite concentrate.

further, on the basis of the contents of the above system embodiments, the blast furnace smelting quantitative decision support system provided in the embodiments of the present invention, which is used for analyzing the influence on the sinter ore blending structure, the blast furnace charging grade, and the pig iron cost after the blending into the imported ore, includes: and analyzing the influence of the proportion and unit price of the imported ore added to the sintering process of the vanadium-titanium magnetite concentrate on the structure of the sintered ore added, the furnace feeding grade of the blast furnace and the pig iron cost, and judging the proper unit price of the imported ore according to the change of the unit prices of the coke and the imported ore.

In a second aspect, an embodiment of the present invention provides an electronic device, including:

At least one processor; and

at least one memory communicatively coupled to the processor, wherein:

the memory stores program instructions executable by the processor, and the processor calls the program instructions to implement the blast furnace smelting quantitative decision support system provided by any one of the various possible implementations of the first aspect.

In a third aspect, an embodiment of the present invention provides a non-transitory computer-readable storage medium storing computer instructions that cause a computer to implement the blast furnace smelting quantitative decision support system provided in any one of the various possible implementations of the first aspect.

According to the blast furnace smelting quantitative decision support system and the blast furnace smelting quantitative decision support equipment, the database management module, the coking process module, the sintering process module, the blast furnace process module, the concentrate agglomeration analysis module and the imported ore analysis module are integrated, so that the quantitative decision support system for each sub-process of blast furnace smelting is established, and the improvement and decision basis can be provided for each process in the blast furnace smelting process.

Drawings

in order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, a brief description will be given below to the drawings required for the description of the embodiments or the prior art, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic structural diagram of a blast furnace smelting quantitative decision support system provided in an embodiment of the present invention;

FIG. 2 is a diagram illustrating a relationship between sub-data tables and a summary table of coking according to an embodiment of the present invention;

FIG. 3 is a schematic diagram illustrating a relationship between sintering sub-data tables and a summary table according to an embodiment of the present invention;

FIG. 4 is a schematic diagram illustrating the relationship between blast furnace process data tables according to an embodiment of the present invention;

Fig. 5 is a schematic physical structure diagram of an electronic device according to an embodiment of the present invention;

FIG. 6 is a schematic diagram of a raw fuel cost performance evaluation interface provided by an embodiment of the present invention;

FIG. 7 is a schematic diagram of a material structure optimization and material heat balance quantitative analysis interface of a coking process according to an embodiment of the present invention;

FIG. 8 is a schematic diagram of a material-to-heat balance quantization interface and cost optimization of sintering material according to an embodiment of the present invention;

FIG. 9 is a schematic view of a blast furnace material cost optimization and material and heat balance quantification interface provided by an embodiment of the present invention;

fig. 10 is a schematic view of an economic analysis of vanadium-titanium magnetite concentrate agglomeration according to an embodiment of the present invention;

FIG. 11 is a schematic view of an analysis interface of critical unit price of imported ore under vanadium titano-magnetite smelting according to an embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention. In addition, technical features of various embodiments or individual embodiments provided by the invention can be arbitrarily combined with each other to form a feasible technical solution, but must be realized by a person skilled in the art, and when the technical solution combination is contradictory or cannot be realized, the technical solution combination is not considered to exist and is not within the protection scope of the present invention.

The iron-making procedure quantitative decision support system is a comprehensive analysis system for the ferrite flow, the carbon energy flow and the cost flow of the whole iron-making procedure, and aims to quantitatively analyze the ferrite flow direction and distribution rule, the carbon energy flow direction and distribution rule and the influence of each ferrite flow and carbon energy flow on the iron-making cost in the sub-procedures of coking, sintering, blast furnace and the like in an iron-making system. Because the raw fuel conditions used by various iron and steel enterprises are greatly different, the comparability of various process indexes of different iron and steel enterprises is not strong. Therefore, a quantitative support decision system for each sub-process of iron making is established according to the boundary conditions of the vanadium-titanium ore smelting, and the method has very important significance for providing improvement and decision directions for each process. Based on the idea, the embodiment of the invention provides a blast furnace smelting quantitative decision support system, and referring to fig. 1, the system comprises: the database management module 101 is used for recording the relationship between the sub data tables and the summary table; the coking process module 102 is used for optimizing the structure and cost of the coal, and quantifying the balance of materials and elements, the balance of heat and the influence of parameter change on the quality and cost of the coke; the sintering procedure module 103 is used for cost optimization with constraint conditions on the ore, material and element balance, heat balance quantification and quantification of influence amplitude of parameter variation on the cost of the sintered ore; the blast furnace process module 104 is used for cost optimization with constraint conditions on ores, material and element balance quantification, heat balance quantification and quantification of the influence amplitude of parameter variation on coke ratio; the ore concentrate agglomeration analysis module 105 is used for analyzing the influence of ore concentrate agglomeration on a sintering ore blending structure and blast furnace burden cost when the ore concentrate agglomeration is blended into sintering or pelletizing; and the imported ore analysis module 106 is used for analyzing the influence on the sintering ore blending structure, the blast furnace charging grade and the pig iron cost after the imported ore is blended.

specifically, the ore concentrate agglomeration analysis module is used for analyzing the influence of the ore concentrate agglomeration on the sintering ore blending structure and the blast furnace burden cost when the ore concentrate agglomeration is blended into the sintering or pelletizing, and comprises: selecting the components of a vanadium-titanium magnetite concentrate, the corresponding sintering and blast furnace raw material components and the price; calculating the grade of the pellets according to the ratio of the pellets to the bentonite; calculating theoretical ore unit consumption and a blast furnace burden structure table according to the furnace feeding grade; calculating the TFe content and unit consumption of sintering according to a furnace charge structure table; constructing 5 linear equation sets according to the slag alkalinity, the sintering TFe content, the unit consumption of sintering ore, the sintering fuel ratio and the flux ratio, and solving the unit consumption of sintering raw materials; and calculating the proportion of the sintering raw materials, the components and the pig iron cost to obtain a sintering ore proportioning scheme which changes along with the proportion of the pellets. In the specific case, see fig. 10, the left side in fig. 10 includes options of parameter setting, parameter modification confirmation, agglomeration economy analysis, and the like. The method comprises the following steps of selecting parameters, wherein the parameters comprise the sub-options of vanadium-titanium pellet processing cost, unit/t, vanadium-titanium sinter processing cost, unit/t and bentonite proportion,%, charging TiO2 load, kg/t, sinter limestone proportion,%, mixed new material carbon content,%, ore comprehensive grade,%, reference coke ratio, kg/t, reference coal ratio, kg/t, slag binary alkalinity R2, lump ore proportion,% and the like. The space to the right of the sub-options shows the specific numerical value of each sub-option. The right side of fig. 10 includes items such as components, vanadium-titanium-iron concentrate (ore), high-fines ore, medium-fines ore, quicklime, limestone, coke powder, bentonite, lump ore, coke, coal powder, detail items, 20% pellet, 25% pellet, 30% pellet, 35% pellet, 40% pellet, 45% pellet, 50% pellet, 55% pellet, 60% pellet, and the like. The specific contents of the respective items can be seen in fig. 10.

Based on the content of the above system embodiment, as an optional embodiment, the blast furnace smelting quantitative decision support system provided in the embodiment of the present invention, the database management module is further configured to evaluate a raw fuel cost performance, and accordingly, the evaluation method of the raw fuel cost performance includes: a three-stage evaluation method, a sintering single-burning-pig iron cost comprehensive evaluation method and a blast furnace pig iron cost comprehensive evaluation method. Specifically, the three methods are briefly described as follows: first, the three-stage addition/subtraction interval setting (three-stage method) of the quality index of each coal type is shown in table 1 according to the addition/subtraction criteria of the raw fuel.

TABLE 1

Item	Sign of participation in calculation	Amplitude of fluctuation%	Fluctuation interval 1/times	2/times fluctuation interval	Fluctuation interval 3/times
						symbol	Flag	A	B1	B2	B3
magnitude of addition and subtraction, yuan/t			5.0	10.00	15.00
						St,％	1	-0.100	2.000	3.000	5.000
Ad,％	1	-0.500	2.000	3.000	5.000
						Vdaf,％	1	1.500	2.000	3.000	5.000
G	1	1.000	2.000	3.000	5.000

The settings are as follows in table 1:

In the participation calculation flag field, a setting value of 1 indicates participation in calculation, and a setting value of 0 indicates non-participation in calculation; in the fluctuation range column, starting from the third row, the value is positive, the lower the value is, the better the value is, the value is negative, the higher the value is, the better the value is, the value cannot be 0, and the calculation formula is convenient to compile; in the fluctuation interval setting field, different interval widths can be set from the third line; and adding and subtracting all the participating items to obtain the price after adding and subtracting, wherein the ratio of the price after adding and subtracting to the set standard price is the cost performance. If the number of the added items is more, the obtained ratio exceeds 1, and the cost performance of the raw material is better. Examples are described below:

According to the standard value St of 0.8%, 0.1% is fluctuation amplitude, 1 fluctuation interval is 0.8 +/-0.1, namely 0.7% -0.9% is a 1-time interval, and the addition/reduction value is 5 yuan/t; 2 intervals of fluctuation were 0.8 + -0.2, i.e. values falling outside the 1-fold interval, 0.6% -0.7% and 0.9% -1.0% are discounted by 10 yuan/t, 3 intervals of fluctuation were 0.8 + -0.3, i.e. values falling outside the 1, 2-fold interval, < 0.6% and > 1.1% are discounted by 15 yuan/t. The interval, amplitude and addition/subtraction price in table 1 can be scaled by itself, so that the addition/subtraction price difference of each factor can be increased.

Secondly, in order to consider the cost performance of the sintered iron ore powder, the cost to pig iron must be comprehensively calculated (comprehensive evaluation of sintering single sintering-pig iron costMethod). Therefore, the single burning component of the sintered iron ore powder is calculated to be a charging ore of the blast furnace, and the processing cost of the iron ore powder in the sintering process is increased, so that the condition of equal evaluation of the charging raw material of the blast furnace is provided. The single-firing components of the iron ore powder are calculated as follows: setting the specified iron ore powder at 100kg and the unit price of C_{iron ore}T, 5kg of fuel, unit price C_FuelT, limestone monovalent value C_LimeT is R according to the single burning alkalinity₁The limestone consumption x required is as follows:

Limestone consumption:

(1) In the formula, CaO and SiO₂The contents of iron ore powder, dye and limestone respectively;

Single-fired ingredients:

Residual amount Ig of mixture of 100kg of iron ore powder, 5kg of dye and xkg lime_{Total up to}the TFe and S contents of the sintered ore were calculated as follows:

Ig_{Total up to}＝100(1-Ig_{Iron ore})+5(1-Ig_Fuel)+x(1-Ig_Lime)

The rest components are analogized, but the calculation in the sinter is as follows:

nS is the sintering desulfurization rate, calculated as 95%.

The single firing cost:

Cost per firing C_{Cost of}The calculation is as follows:

C_{Cost of manufacture}And C_{energy power}the two part of the cost is calculated according to the amount of the sinter entering the furnace, namely the sinter C entering the furnace_{Cost of manufacture}、C_{Energy power}The total is 110 Yuan/t, C_desThe cost for removing 1kg of sulfur in the mixed material is about 3.2 yuan according to the cost statistics of the limestone desulfurization method.

Finally, the blast furnace pig iron cost comprehensive evaluation method is specifically described as follows:

a. Iron ore unit consumption O_mine，t/t_p：

b. According to the basicity R of the slag₂calculating unit consumption O of iron ore_minecorresponding limestone flux unit consumption, t/t_p：

c. Comprehensive furnace entering grade TFe is summarized in percent:

d.TFe_HealdCorresponding coke ratio O_{coke (coke)}，kg/t_p：

O_{Coke (coke)}＝O_{Coke 0}(1+(TFe₀-TFe_heald)×2％)

TFe₀，O_{Coke 0}Reference focal ratios corresponding to reference TFes, respectively, TFes in general₀＝56％，O_{Coke 0}＝350kg/t_pCoal ratio of 150kg/t_pAnd (4) calculating.

e. limestone O for fuel consumption_{Melt 1}，t/t_p：

f. Substituting limestone consumed by fuel into step C, and circularly calculating integrated TFe grade and limestone consumed by fuel until TFe_HealdIs less than 0.01% absolute.

g. Calculating the percentage of the molten iron [ P ], [ S ], [ V ]:

h. cost changes due to [ P ], [ S ], [ V ] (assuming that the residual element content is 0.004%)

C_[V]＝[V]×10×η_V×C_80V

C_[P]＝([P]×10-0.04)×C_deP

C_[S]＝([S]×10-0.04)×C_deS

i. Value of the slag: amount of slag O_slagAnd comprehensive grade TFe_HealdThe fitted empirical relationship (constant correctable) and slag value calculation (taking decimal, e.g., 0.58) is as follows:

j. comprehensive cost of pig iron C_tp

C_tp＝O_Mine·C_Mine+O_{Fusion furnace}·C_{Fusion furnace}+O_{coke (coke)}·C_{coke (coke)}+O_{coal (coal)}·C_{Coal (coal)}-C_Slag-C_[V]+C_[P]+C_[S]

the interface for evaluating the cost performance of the raw materials can be seen in fig. 6, the coking process is selected from the selection process and the corresponding database, and the gas coal of the A1 coking process, the fat coal of the A2 coking process, the coking coal of the A3 coking process, the lean coal of the A4 coking process and one third coking coal of the A coking process are displayed. The lower left corner displays options such as three-stage cost performance evaluation, single-burning-pig iron cost comprehensive evaluation, a pig iron cost comprehensive evaluation method, a check result and an Excel file output. Items such as item names, coking coal 1 to coking coal 6, etc. are shown in the right box, and specific data and item names of the items can be seen in fig. 6.

based on the content of the above system embodiment, as an optional embodiment, the blast furnace smelting quantitative decision support system provided in the embodiment of the present invention is used for recording the relationship between the sub data table and the summary table, and includes: recording the relationship between a coking sub data table and a coking procedure matching coal summary table; recording the relation between the sintering sub-data sheet and the sintering procedure mixed ore summary sheet; and recording the relationship between the blast furnace process sub-data sheet and the blast furnace process raw fuel summary sheet. Specifically, the relationship between each data in the database management module and the summary table can be seen in fig. 2 to 4. Wherein, fig. 2 shows the relationship between each coking sub-data sheet and the summary sheet, fig. 3 shows the relationship between each sintering sub-data sheet and the summary sheet, and fig. 4 shows the relationship between the blast furnace process number data sheets. In fig. 1, a weighing basic data of gas coal (1-10 types) in a1 coking process is subjected to weighing to obtain a1 mixed gas coal and a1 ratio, and the A2, the A3, the A4 and the A5 subjected to similar processes (see fig. 1) are mixed to obtain a blended coal weighing basic data. In fig. 2, the B1 bulk iron concentrate and B1 proportion of fine iron ore (1-10 kinds) in the B1 sintering process is obtained through weighting basic data, and the fine iron ore is mixed with B2, B3, B4 and B5-B7 which are processed through similar processes (see fig. 2) to obtain the weighting basic data of a sintering mixture. In fig. 3, basic data of C1 mixed sinter and C1 unit consumption are obtained by weighting C1 blast furnace process sinter (1-10 types), and basic data of blast furnace ore feeding weighting are obtained by mixing with C2, C3, C5, C4 and C6 which are processed by similar processes (see fig. 3).

Based on the content of the above system embodiment, as an optional embodiment, the blast furnace smelting quantitative decision support system provided in the embodiment of the present invention is used for performing structure and cost optimization on coal, and includes: taking the first 3 kinds of gas coal, the first 3 kinds of fat coal, the first 5 kinds of coking coal, the first 2 kinds of lean coal and the first 5 kinds of 1/3 coking coal in a database to form 18 kinds of coal, and carrying out material structure with constraint conditions and cost optimization on the 18 kinds of coal; and according to the specified coal blending structure, the material and element balance of the coking process, the heat balance quantification and the influence range quantification of the parameter change on the coke quality and the cost are carried out. Specifically, referring to fig. 7, the constraint condition may be (optimal target value setting): the G value of blended coal is more than or equal to 80 percent, Vd of the blended coal is more than or equal to 24 percent, Std of the blended coal is less than or equal to 0.8 percent, Ad of the blended coal is less than or equal to 10.5 percent, the proportion of coking coal is more than or equal to 45 percent, the proportion of 1/3 coking coal is more than or equal to 40 percent, and the total amount of the coking coal is 400 ten thousand t/a. The left side of the graph 7 also includes options such as adding proportion + weighting calculation, coal blending cost optimization, latest scheme quantitative analysis and conversion of quantitative results into Excel tables. The right side includes items such as description, item name, mixed gas coal, mixed fat coal, mixed coking coal and the like, and specific contents of each item can be seen in fig. 7.

Based on the content of the above system embodiment, as an optional embodiment, the blast furnace smelting quantitative decision support system provided in the embodiment of the present invention is used for cost optimization with constraint conditions on a mine, and includes: taking the first 5 kinds of iron ore concentrate, the first 3 kinds of imported ore, the first 3 kinds of national high powder, the first 3 kinds of medium powder, the first 1 kinds of lime, the first 1 kinds of raw stone sand and the first 1 kinds of coal powder in a database to form 18 kinds of ore, and carrying out cost optimization with constraint conditions on the 18 kinds of ore; and materials with the specified proportion are subjected to material and element balance, heat balance quantification and parameter change influence amplitude quantification on the sinter cost. Specifically, referring to fig. 8, the constraint condition may be (optimal target value setting): sintered ore TFe 50%, sintered ore SiO₂5.5%, basicity of sintered ore 2.0%, and TiO of sintered ore₂6.0 percent, 6.0 percent of active ash, 5.0 percent of fuel, and 1000 ten thousand t/a of new material. The left side in fig. 8 includes addition of mix proportion + weighting calculation, material heat balance analysis, conversion of quantized results to Excel table, and target value modification options. The right side includes the project name, iron concentrate X1, iron concentrate X2, iron concentrate X3, iron concentrate X4 and iron concentrateitem X5. Specific data for each item can be seen in fig. 8.

Based on the content of the above system embodiment, as an optional embodiment, the blast furnace smelting quantitative decision support system provided in the embodiment of the present invention is used for cost optimization with constraint conditions and material and heat balance quantification of ores, and includes: taking the first 5 types of sintered ores, the first 4 types of pellet ores, the first 3 types of lump ores, the first 2 types of fluxes, the first 2 types of cokes and the first 2 types of coal powder in a database to form 18 types of ores, and carrying out cost optimization with constraint conditions on the 18 types of ores; and carrying out amplitude quantification on the influences of material and element balance, heat balance quantification and parameter change on the focal ratio. Specifically, referring to fig. 9, the constraint condition may be (optimal target value setting): TFe 51.0%, slag basicity R₂1.05%, slag TiO₂More than or equal to 20.0 percent, the ratio of pellet ore is 20.0 percent, the ratio of lump ore is 5.0 percent, and the coke ratio is 450.0kg/t_pCoal ratio of 120.0kg/t_pThe total amount of ore charged into the furnace is 1000 ten thousand t/a. The left side in fig. 9 includes the addition ratio + weighting calculation, the blast furnace material heat balance, the blast furnace material cost optimization, the conversion of the quantized result into the Excel table, and the target value modification option. The right side includes items such as item name, sinter X1, sinter X2, sinter X3, sinter X4, sinter X5, and sinter X6. The specific content of each item can be seen in fig. 9.

Based on the content of the above system embodiment, as an optional embodiment, the blast furnace smelting quantitative decision support system provided in the embodiment of the present invention includes: vanadium-titanium magnetite concentrate.

Based on the content of the above system embodiment, as an optional embodiment, the blast furnace smelting quantitative decision support system provided in the embodiment of the present invention, which is used for analyzing the influence on the sintering ore blending structure, the blast furnace charging grade, and the pig iron cost after the blending into the imported ore, includes: and analyzing the influence of the proportion and unit price of the imported ore added to the sintering process of the vanadium-titanium magnetite concentrate on the structure of the sintered ore added, the furnace feeding grade of the blast furnace and the pig iron cost, and judging the proper unit price of the imported ore according to the change of the unit prices of the coke and the imported ore.specifically, the components of the vanadium-titanium magnetite concentrate, the corresponding sintering and blast furnace raw material components and the price need to be determined; determining the unit price difference between imported ore and national high-grade powder, the unit price difference between blast furnace coke and sintering coke powder, and synchronously changing the price according to the unchanged unit price difference; determining a reference furnace entering grade, the unit consumption of coke and injected pulverized coal, and calculating theoretical ore unit consumption, fuel ratio and blast furnace burden structure tables corresponding to different grades according to the furnace entering grade, the reference coke ratio and an empirical formula; calculating the TFe content and unit consumption of sintering according to a furnace charge structure table; under the condition of unchanged grade, according to the alkalinity of the slag, the content of sintering TFe, the unit consumption of sintering ore, the proportion of sintering fuel, the proportion of flux, the total amount of national blast powder and the TiO of the slag₂constructing 7 linear equation sets according to the content, solving the unit consumption of sintering raw materials, and performing single-row import and national high powder unit consumption; calculating the unit consumption of sintering raw materials under different furnace-entering grade conditions; regression analysis is carried out on the pig iron cost variation curves under different grade conditions, the pig iron cost variation curves under different import ore unit prices and coke unit prices are drawn, and the curve with the minimum pig iron cost variation is observed; and resetting and reducing the variation range of the unit price of the imported ore, and obtaining a new regression equation with the minimum influence of the grade variation on the pig iron cost, so that the critical unit price of the imported ore under the pig iron cost and the coke unit price can be obtained. The specific interface can be seen in fig. 11, and the left side in fig. 11 includes options of parameter setting, parameter modification confirmation and critical unit price calculation of imported ore. The sub-options of the parameter setting options comprise the total amount of sintered national high-grade powder, ten thousand of (a), the proportion of sintered limestone, the carbon content of a mixed new material, percent, the reference comprehensive grade, percent, the reference coke ratio, percent, the reference coal ratio, kg/t, the binary basicity R2 of slag, the total amount of lump ore, ten thousand of (a), the total amount of pellets, ten thousand of (a), the content of slag TiO2, percent, the valence difference between coke and sintered fine coke, the valence difference between yuan/t, imported ore and national high-grade powder, the relation between yuan/t, grade and coke ratio, the relation between imported ore and sintered blast furnace manufacturing cost, percent, the reference pig iron scale, ten thousand of (a), the designated coke price, yuan/t, the target pig iron cost, the profit of yuan/t and V2O5, and yuan/kg. The box on the right of each sub-option is marked with a specific numerical value. The right side of FIG. 11 includes ingredients, fine iron ore, import powder, fine ore, medium powder ore, quicklime, limestone, and coke powderPellet and lump ore. Specific numerical values of the respective items can be seen in fig. 11.

The blast furnace smelting quantitative decision support system provided by the embodiment of the invention establishes a quantitative decision support system for each sub-process of blast furnace smelting by integrating the database management module, the coking process module, the sintering process module, the blast furnace process module, the concentrate agglomeration analysis module and the imported ore analysis module, and can provide improvement and decision basis for each process in the blast furnace smelting process.

The system of the embodiment of the invention is realized by depending on the electronic equipment, so that the related electronic equipment is necessarily introduced. To this end, an embodiment of the present invention provides an electronic apparatus, as shown in fig. 5, including: at least one processor (processor)501, a communication Interface (Communications Interface)504, at least one memory (memory)502 and a communication bus 503, wherein the at least one processor 501, the communication Interface 504 and the at least one memory 502 are in communication with each other through the communication bus 503. The at least one processor 501 may invoke logic instructions in the at least one memory 502 to implement the following system: the database management module is used for recording the relation between the sub data table and the summary table; the coking process module is used for optimizing the structure and cost of the coal; the sintering procedure module is used for carrying out cost optimization with constraint conditions on the ores; the blast furnace process module is used for carrying out cost optimization with constraint conditions on ores and balancing and quantifying materials and heat; the ore concentrate agglomeration analysis module is used for analyzing the influence of ore concentrate agglomeration on a sintering ore blending structure and blast furnace burden cost when the ore concentrate agglomeration is blended into sintering or pelletizing; and the imported ore analysis module is used for analyzing the influence on a sintering ore blending structure, the furnace feeding grade of the blast furnace and the pig iron cost after the imported ore is blended.

Furthermore, the logic instructions in the at least one memory 502 may be implemented in software functional units and stored in a computer readable storage medium when sold or used as a stand-alone product. Based on such understanding, the technical solution of the present invention may be substantially implemented or contributed to by the prior art, or the technical solution may be implemented in a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the system according to the embodiments of the present invention. For example, a system comprising: the database management module is used for recording the relation between the sub data table and the summary table; the coking process module is used for optimizing the structure and cost of the coal; the sintering procedure module is used for carrying out cost optimization with constraint conditions on the ores; the blast furnace process module is used for carrying out cost optimization with constraint conditions on ores and balancing and quantifying materials and heat; the ore concentrate agglomeration analysis module is used for analyzing the influence of ore concentrate agglomeration on a sintering ore blending structure and blast furnace burden cost when the ore concentrate agglomeration is blended into sintering or pelletizing; and the imported ore analysis module is used for analyzing the influence on a sintering ore blending structure, the furnace feeding grade of the blast furnace and the pig iron cost after the imported ore is blended. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.

The above-described embodiments of the apparatus are merely illustrative, and the units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.

through the above description of the embodiments, those skilled in the art will clearly understand that each embodiment can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware. With this understanding in mind, the above-described technical solutions may be embodied in the form of a software product, which can be stored in a computer-readable storage medium, such as ROM/RAM, magnetic disk, optical disk, etc., and includes instructions for enabling a computer device (which may be a personal computer, a server, or a network device, etc.) to implement the methods or systems of the various embodiments or some parts of the embodiments.

The flowchart and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to various embodiments of the present invention. Based on this recognition, each block in the flowchart or block diagrams may represent a module, a program segment, or a portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that, in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.

In this patent, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.